answer:
liquids have he ability to change shape
liquids flow even with some resistance
liquids have a definite volume
liquids have molecules that slip past each other
Answer: The answer is 700kg
Explanation:
Answer:
0.3 seconds approximately
Explanation:
Given that the height of the building is 55.9 m and cement block accidentally falls from rest from the edge of a 55.9-m-high building. The initial velocity of the block will be equal to zero. The final velocity will be achieved by using the formula:
V^2 = U^2 + 2gH
Where g = 9.8 m/s^2
H = 55.9m
V^2 = 0 + 2 × 9.8 × 55.9
V^2 = 1095.64
V = sqrt(1095.64)
V = 33.1 m/s
The velocity When the block is 11.2 m above the ground will be 33.1 m/s and the height h = 11.2 - 1.7 = 9.5 m
The time of escape can be calculated by using the formula;
h = Ut + 1/2gt^2
9.5 = 33.1t + 1/2 × 9.8 × t^2
9.5 = 33.1t + 4.9t^2
4.9t^2 + 33.1t - 9.5
By using quadratic formula to calculate the time, the negative value is ignored and the positive values will be the time the man has to get out of the way.
Please find the attached file for the remaining solution.
Answer:
Explanation:
Given
Pressure drop
inlet diameter
Outlet diameter
density of water
Suppose and be the inlet and outlet velocity
According to continuity equation
where A=cross-section of Pipe
thus
Also from Bernoulli's Equation
Speed is the rate of change <span>of distance.</span>